Tensor decomposition is a powerful computational tool for multiway data analysis. Many popular tensor approaches—such as the Tucker and CANDECOMP/PARAFAC (CP)—amount to multi-linear factorization. They are insufficient model (i) complex interactions between entities, (ii) various types (e.g., missing binary data), (iii) noisy observations outliers. To address these issues, we propose tensor-variate latent nonparametric Bayesian models We name InfTucker. These new essentially conduct in an...

Underwater communication is essential for both recreational and scientific activities, such as scuba diving. However, existing methods remain highly constrained by environmental challenges often require specialized hardware, driving research into more accessible underwater solutions. While recent acoustic-based systems support text messaging on mobile devices, their low data rates severely limit broader applications. We present AquaScope, the first acoustic system capable of image...

In recent years, with the increasing of wind power development, demand for low voltage ride-through (LVRT) technology was proposed to ensure safe and reliable operation system. The key issue LVRT strategy doubly-fed induction generator (DFIG) varies according network synchronisation modes. Firstly, existed technologies when DFIG is connected AC are surveyed. Then relevant literatures about summarised analysed in regard surplus two-terminal system DC control multi-terminal system,...

A technique using wavelet packets is presented for accurate fault location on power lines with branches. It relies detecting fault-generated transient traveling waves and identifies some reflected back from discontinuities the point. Wavelet analysis used to decompose reconstruct high-frequency signals. An eigenvector matrix consists of local energies content signal; faulty section determined by comparing in a given threshold. With determined, time ranges two related point would be found...

A new method is presented for accurate fault location on a distribution line with branches which integrates the C-type-traveling-wave Artificial Neural Network (ANN). The aim to improve accuracy of location. There are two steps in scheme. first step determining distance accurately by C-type traveling wave method; second one locating branch ANN method. Both theoretical analyses and ATP simulation demonstrate feasibility this composite determine single phase grounding network.

Soft open points (SOPs) have the ability to regulate power flow among their terminals in a continuous manner, which can solve problems brought by synergy of distribution networks and distributed generation, improve system reliability supply capability. To address current lack quantitative measurement on effects SOPs, capability evaluation method for active (ADNs) with four-terminal SOPs considering is proposed. Firstly, topology configuration modes are studied, control investigated normal...

In this article, we propose an iterative algorithm to compute the minimum norm least-squares solution of AXB+CYD=E, based on a matrix form LSQR for solving least squares problem. We then apply centrosymmetric min X ‖AXB−E‖ F . Numerical results are provided verify efficiency proposed method.

1000 MW synchronous generator is a large-capacity generator. Three-phase short circuit of serious fault in the electric power system, which influences badly on noumenon machine and correlative equipment, likely causes great economic loss. It important to study it. By making use Simulink this paper, under d-q coordinate system established simulation model sudden three-phase circuit. Various physical quantities were studied by during Both theoretic show, that generator, there are tremendous...

In this paper, the traditional fault location methods are analyzed, especially C-type traveling wave method; and a new composite method was presented which is based on DC theory. The integrates of with signal injection one. aim to combine different improve accuracy location. has two steps, first step determining distance accurately by second one locating branch method. After theoretical analysis, ATP simulation, irrelevant limits network dissymmetry, distributed capacitance line parameter,...

Virtual network function (VNF) can provide various services and is widely deployed in inter-data centers elastic optical networks (Inter-DC EONs). Routing VNF deployment for service chain (VNF-SC) Inter-DC EONs a very important well-known NP-hard problem. For this problem, if determining the number locations of data additionally considered, it will be more complicated. In paper, we investigate planning problem by all these factors, i.e, not only optimal routing VNF-SCs, but also centers. To...

A method of fault location is presented which based on the traveling-wave scheme for rural MV power networks. There are two steps in this method, first step to determine section, and second find point. When a single-phase-to-earth happened, injecting narrow pulse signal with high voltage detecting wave returned back from line, we analyze by wavelet packets, then section distance can be determined, point found. Based theoretical analysis, calculating analyzing data obtained lots ATP-EMTP...

Hybrid multilayered time-varying linear system is a challenging problem, which has complex structure and characteristics. In order to solve this we use the method of zeroing neural network analyze equivalence between different layers. According equivalent results, continuous model proposed. satisfy real-time computation facilitate hardware implementation, five-instant time-discretization formula with high accuracy proposed for discretization model. Then, corresponding discrete hybrid system....

On the basis of introducing rural distribution networks single-phase-to-earth fault location method, a composite method single-phase earth about network is presented which integrate C-type traveling wave with DC signal injection method. There are two steps in this firstly distance accurately located by method; then branch The proposed gives full play to advantage high speed and that low error has good application prospect.

Song, J.; Xie, H., and Feng, Y., 2018. Correlation analysis method for ocean monitoring big data in a cloud environment. In: Ashraf, M.A. Chowdhury, A.J.K. (eds.), Coastal Ecosystem Responses to Human Climatic Changes throughout Asia.The current correlation is time consuming, stability poor. A new proposed overcome these problems. The were divided into eight categories analyzed individually, then model, coast sets calculated according the spatial function determine coefficient collect of...

The fault ride-through performance of the wind farm and control strategy modular multilevel converter (WFMMC) have a significant effect on transient voltage stability system. In this regard, characteristics VSC-HVDC system are studied in case different degrees failure at point connection (POC) then low (LVRT) that coordinated with software hardware is proposed paper. terms farm, crowbar circuit added order to protect safe operation turbines. aspect VSC-HVDC, an additional reactive current...

In this paper, the original fuzzy linear system is replaced by a matrix equation and CG-type iterative method considered, which exact solution can be obtained in finite steps absence of rounding error, even if coefficient singular or rectangular. paper [T. Allahviranloo, A comment on systems, Fuzzy Sets Syst., 140(2003):559], author pointed out that Theorem 3 [M. Friedman M. Ming, Linear 96 (1998):201-209] cannot hold. we think theorem right perfect its proof.

Elastic optical networks (EONs) virtualization can allow the virtual (VONs) to utilize all physical resources of EONs, and attain a high performance networks. However, optimal scheme for VONs mapping should be determined. To tackle these challenges, bi-level mathematical model is established. leader's follower's objectives are minimize energy consumption maximum index used frequency slots, respectively. The determine schemes mapping. solve effectively, uniform design method applied generate...